A spaceborne k-band phased array antenna circularly polarized waveguide radiation array
A phased array antenna, circularly polarized wave technology, applied in the antenna, the structure of the radiating element, the combination of antenna units with different polarization directions, etc. Ground communication requirements and performance cannot meet the link requirements of spaceborne communication and ranging, and cannot meet the requirements of inter-satellite and satellite-to-ground communication, so as to achieve the effects of small scanning gain drop, light weight, and small height and size
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[0045] The basic idea of the present invention is to provide a space-borne K-band phased array antenna circularly polarized waveguide radiation array, and the microwave signal of the antenna element of each phased array antenna radiation array is transmitted from the SMP coaxial feed socket and the SMP feeder The feed end of the electric socket feeds into the wave co-conversion of the antenna unit, through which the TEM mode microwave signal transmitted by the original coaxial transmission is converted into a TE mode line polarized microwave signal, and then fed into the circular polarizer, wherein the impedance matching The impedance matching performance of the antenna unit is adjusted by the polarizer, so as to minimize the reflection of the microwave signal, and then the TE mode line polarized microwave signal is converted into a circularly polarized microwave signal by the circular polarizer, and fed into the radiation direction of the square waveguide radiator In space, ...
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